[ppml] IPv6 & /48 [was 2005-1:Business Need for PI Assignments]

[Randy Bush]

just to throw in a serious bomb, there is no actual real technical
reason for the /64 magic boundary.  it's one of the last big pieces
of the old v6 religion.  but beware that it does have some ties to
ether-like mac addresses and hence auto-numbering.

randy